1616976-79-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1616976-79-4 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,6,1,6,9,7 and 6 respectively; the second part has 2 digits, 7 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 1616976-79:
(9*1)+(8*6)+(7*1)+(6*6)+(5*9)+(4*7)+(3*6)+(2*7)+(1*9)=214
214 % 10 = 4
So 1616976-79-4 is a valid CAS Registry Number.